Rear bumper for automobiles



FIG. 1 is a front elevational view of a rear bumper for automobiles showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof; and,

FIG. 4 is a front perspective view thereof.

The broken lines in the drawings illustrate portions of the rear bumper for automobiles that forms no part of the claimed design. 

CLAIM The ornamental design for a rear bumper for automobiles, as shown and described. 